Carburetor



- Feb. A12 19241,4 f-

D.- GuELBAuM l.

CARBUBETOR madman 1 4'. 1921 VEN TOR.

Patented Feb. 12, 1924.

lso STATES DAVID GUELBAUM, 0F SYRACUSE, NEW YORK.

CARBURETOR. f

Application lcd March, 14, 192,1.

To aZ whom it may concer/n:

Be it lrnown that I, DAVID GUELBAUM, a citizen of the United States, and a resident of ySyracuse, in the county of Onondaga and `State of New York, have invented a certain new and useful Carburetor, of which the following is a specification.

This invention of a carburetor has for its object. the thoro permeation of air with any kind of liquid fuel, in a fixed ratio between the volumes of the air andthe fuel, by means of two concentric sheet streams of air and oil of adjustable thicknesses, as of the type set forth in my previous applications, Si'. No. 412,736, filed Sept. 25, 1920; Sr. No. 432,186, filed Dec. 21, 1920 and Sr. No. 448,060, filed Febr. 26, 1921, my present device being distinguished by the special construction of the bottom of the outer casing, of the double adjusting sleeve and of the central fuel supply pipe.

My invention consists in the novel. features as hereinafter set forth and claimed, and as shown on the accompanying drawings, in which like characters designate corresponding parts in all the views.

Fig. 1 is a vertical section of my carburetor.

Fig. 2. is a side View of the same.

p Fig. 3 is a section 3-3 with outer casing removed.

Fig. L1 is a top view of same.

Fig. 5 is a section 5--5 thro the air and fuel inlets.

Fig. 6 shows another means for securing the inner central pipe to the outer casing.

As seen on Fig.. 1 the fuel enters the top of the inner central pipe 1 and passes thro the slots 19 into the concentric passage 0, while the outside air enters the vopen ports 20 in ythe outer casing 3 and passes into the concentric passage 16, both sheet streams, impinging upon each other and spreading out into a conical stream, intermingle together in the zigzag passages `21 and pass out at thebottom opening.

yfhe regulation of the air and fuel supplies is here effected by means of two vconcentric sleeves 8 and 9, slidingly fitting into each other.

rlhe inner sleeve 9 vslidingly lits the central pipe 1 and atv its bottom inside spreads out into a cone surface of very slight bevel, parallel to the similar adjacent cone surface of the central pipe 1, both these cone surfaces Serial No. 452,361.

forming the sides of the fuel passage 0 Fig. 1.

rI "he outer sleeve 8 screws in and out of the casing 3, and is provided with two tapped holes to receive the screws 10. The ends 11 of these screws, reduced in diameter and passing thro the lugs 12 cast on the top of the inner sleeve 9 are held in engagement with said lugs` and operated by the thumb handles 13, as shown on Figs. 1 and 2. By turning the screws 10 by means of the handles 13, the inner sleeve 9 is moved in or out of the sleeve 8. The movement of the sleeve 9 relative to the sleeve 8 is limited by the two pins 14 screwed into the sleeve 8 and entering the grooves 15 on the sleeve 9, as'shown dotted on Figs. 1, 2 and 4. On Fig. 1 both sleeves are shown in their highest position with the air lpassage 16 and the fuel passage 0 fully open.

By turning its Ytop flange 17 the sleeve 8 is screwed in or out of the casing 3, carrying with it the sleeve 9, and the air and fue] passages are bothsimultaneously closed or opened. By turning the handles 13 the inner sleeve ,9 is moved in or yout of the outer sleeve 8, closing-.or opening the fuel passage 0, while the air passage 16 remains unchanged. The movement of the outer sleeve 8 upward is limited by the overlapping top plate 18 fastened to the outer casing, as shown on Figs. 1, 2 and 4.'

The plate 18 is graduated, being provided on its vertical sides with subdivisions giving the number of turns of the sleeve 8, while subdivisions on the periphery of the flange 17 indicate fractions of a turn of the sleeve 8 as shown on Fig. 2; Thus, the exact position of the sleeve 8 is, indicated and with it the extent of the opening'of the air passage 16.

As seen on Fig. v1, the inner pipey 1 of the mixing and proportioning valve heretofore described is provided at its bottom with the curved head 2, the projecting ribs on this head and on the inside of the adjacent youter casing 3 forming together a zig-zag passage for the intermingling of the air with the fuel. Onthishead 2 are cast the .four arms 5 with theouter rim 6,`which is fitted into the outer casing 3 andv held bythe set screws 7, as shown on Figs. 1 and 3; The arms 5 are beveled'off' on top tov reduce resistance to the passing stream of air and fuel.

The head 2 of the inner pipe l is surrounded by the corresponding extension piece 4t, the top of which is screwed into the tapped bottom of the outer casing 3, butting against the rim 6 and held by the set screws 71, while its bottom terminates in a threaded nipple for ready connection to the engine intake, or to any other pipe line.

Thus, the inner pipe l with its extension piece 2 is located vertically and centered relative to the outer casing 3, formlng one compact body With same. u

On Fig. 6 is shown another means of locating and securing the inner central pipe l with its head 2 relative to the outer casing 3. Onv the extension piece d are cast the two lugs, 51 fitting into grooves on the extension piece 2, which is thus supported and secured from vertical displacement by the pin G passing thro it and the extension piece Slight side clearances are provided for the webs 51 and the pin 6, as shown, in order to allow for self centering of the inneiI pipe l in assembling.

lfig. et is -a top view of the carburetor, showing the limit-ing and indicating plate 1,8. lt has a circular hole in the centre to allow the inner sleeve 9 with its lugs l2 to pass thro, when the liange 17 is being turned to the right, and both sleeves are turning and moving downward together, while the plate 18 is fixed and stationary.

Fig. 5 is a cross section 5 5 thro the air and fuel inlet ports.

NVhat l claim is:

l. A carburetor comprising a casing open at both ends and having air inlet openings in its periphery; a fuel supply pipe having a closed end and peripheral'discharge ports extending into one end of said casing with its closed end secured in rthe other end thereof so as to leave a discharge opening around the closed end of said pipe; a sleeve valve reciprocating on said fuel supply pipe to control the thickness of the fuel sheet stream and a second sleeve valve adj ustably secured to. the first mentioned sleeve valve and reciproca-bly mounted in the end of the casing to control the thickness of the air sheet stream, substantially as and for the purpose specified.

2. Acarburetor comprising a casing open at both ends tapped inside and having air inlet openings in its periphery and provided with a cone shaped projecting surface inside to form a converging air sheet stream and having a curved head screwed in at its outlet end and terminating with a discharge nozzle; a' fuel supply pipe having peripheral discharge ports and a closed end secured inside of said casing at its outlet end; a sleeve valve reciprocating on said fuel supply pipe to control the thickness of the fuel sheet stream and a second sleeve valve adjustably secured to the first mentioned one and reciprocably mounted in the inlet end of said casing to control the thickness of the air sheet stream, substantially as and for the purpose set forth.

A carburetor comprising a casing open at both ends and having air inlet openings in its periphery and provided with an extension piece screwed in at its outlet end; and a fuel supply pipe having peripheral discharged ports and a closed end provided with a diverging cone shaped head :for spreading out the fuel into a diverging sheet stream and having a rim connected to it by cast on arms and held securely in the outlet end of said casing by the head; a sleeve valve reciprocating on said fuel supply pipe to control the thickness of said fuel sheet stream and a second sleeve valve adjustably secured to the first mentioned one and reciproca-bly mounted in the inlet end of said casing to control the air sheet stream thickness therein, substantially as and for the purpose described.

4. A carburetor comprising a casing open at both ends tapped inside and having air inlet openings in its periphery and provided with a cone shaped projecting surface inside to form a converging air sheet stream and having an extension piece with a discharge nipple screwed in its outlet end; a fuel supply pipe having peripheral discharge ports and a closed end with a diverging cone shaped surface for spreading out the fuel into a diverging sheet stream and held securely in the outlet end of said casing; and a sleeve valve reciprocating on said fuel supply pipe and having a diverging cone surface at its bottom inside for controlling the thickness of said diverging fuel sheet stream and a second sleeve valve adjustably mounted on the lirst mentioned one and flanged and threaded at its top to screw in and out in the inletl end of said casing and having its bottom beveled on the outside to control the thickness of the converging air sheet stream spread over the projecting cone surface inside of said casing and being provided with screws passing through lugs secured on top of the first mentioned sleeve valve for adjusting the relative position of both sleeve valves for regulating the thicknesses of said fuel and air sheet streams separately or together, substantially as and for the purpose specilied.

En testimony whereof, l have hereunto signed my name, at Syracuse, in the county of Onondaga, and Sta-te of New York, this 11th day of March, l1921.

DAVID GUELBAUM. 

